Paper towel dispenser



FIG. 1 is an exploded, top, front, and left side perspective view of a paper towel dispenser showing my new design;

FIG. 2 is an exploded bottom, rear, and right side perspective view thereof; and,

FIG. 3 is a reduced front elevational view thereof, the broken-line disclosure being for illustrative purposes only and forming no part of the claimed design. 

The ornamental design for a paper towel dispenser, as shown and described. 